<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>添加商品</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
      <el-col
        ><el-alert
          title="添加商品信息"
          type="info"
          center
          show-icon
          :closable="false"
        >
        </el-alert>
        <el-steps
          :space="200"
          :active="activeindex - 0"
          finish-status="success"
        >
          <el-step title="基本信息"></el-step>
          <el-step title="商品参数"></el-step>
          <el-step title="商品属性"></el-step>
          <el-step title="商品图片"></el-step>
          <el-step title="商品内容"></el-step>
          <el-step title="完成"></el-step>
        </el-steps>
        <el-form
          :model="addForm"
          :rules="addrules"
          ref="addruleForm"
          label-width="100px"
          class="demo-ruleForm"
        >
          <el-tabs
            :tab-position="'left'"
            v-model="activeindex"
            :before-leave="beforeLeave"
            @tab-click="tabsshow"
          >
            <!-- 基本信息 -->
            <el-tab-pane label="基本信息" name="0">
              <el-form-item label="商品名称" prop="goods_name">
                <el-input v-model="addForm.goods_name"></el-input>
              </el-form-item>
              <el-form-item label="商品价格" prop="goods_price">
                <el-input
                  v-model="addForm.goods_price"
                  type="number"
                ></el-input>
              </el-form-item>
              <el-form-item label="商品重量" prop="goods_weight">
                <el-input
                  v-model="addForm.goods_weight"
                  type="number"
                ></el-input>
              </el-form-item>
              <el-form-item label="商品数量" prop="goods_number">
                <el-input
                  v-model="addForm.goods_number"
                  type="number"
                ></el-input>
              </el-form-item>
              <el-form-item label="商品分类">
                <el-cascader
                  v-model="addForm.goods_cat"
                  :options="cateList"
                  :props="catePorps"
                  @change="handleChange"
                >
                </el-cascader>
              </el-form-item>
            </el-tab-pane>
            <!-- 商品参数 -->
            <el-tab-pane label="商品参数" name="1">
              <el-form-item
                :label="item.attr_name"
                v-for="item in manyList"
                :key="item.attr_id"
                ><el-checkbox-group v-model="item.attr_vals">
                  <el-checkbox
                    size="mini"
                    border
                    :label="cb"
                    v-for="(cb, i) in item.attr_vals"
                    :key="i"
                  ></el-checkbox> </el-checkbox-group
              ></el-form-item>
            </el-tab-pane>
            <!-- 商品属性 -->
            <el-tab-pane label="商品属性" name="2">
              <el-form-item
                :label="item.attr_name"
                v-for="item in onlyList"
                :key="item.attr_id"
                label-width="150px"
              >
                <el-input v-model="item.attr_vals"></el-input>
              </el-form-item>
            </el-tab-pane>
            <!-- 商品图片 -->
            <el-tab-pane label="商品图片" name="3">
              <el-upload
                :headers="headersObj"
                class="upload-demo"
                action="http://127.0.0.1:8888/api/private/v1/upload"
                :on-preview="handlePreview"
                :on-remove="handleRemove"
                :on-success="successImge"
                list-type="picture"
              >
                <el-button size="small" type="primary"
                  >点击上传</el-button
                ></el-upload
              >
            </el-tab-pane>
            <!--商品内容 -->
            <el-tab-pane label="商品内容" name="4">
              <quill-editor ref="myQuillEditor" v-model="addForm.goods_intro">
              </quill-editor>
              <el-button class="eitdbutton" type="primary" @click="add"
                >添加商品</el-button
              >
            </el-tab-pane>
          </el-tabs>
        </el-form>
      </el-col>
    </el-card>
    <el-dialog title="图片预览" :visible.sync="imgdialogVisible" width="30%">
      <img :src="previewPath" alt="" class="pimg" />
    </el-dialog>
  </div>
</template>

<script>
import _ from "lodash";
export default {
  data() {
    return {
      activeindex: "0",
      addForm: {
        goods_name: "",
        goods_price: 0,
        goods_weight: 0,
        goods_number: 0,
        goods_cat: [],
        pics: [],
        goods_intro: "",
        attrs: [],
      },
      cateList: [],
      addrules: {
        goods_name: [
          { required: true, message: "请输入商品名称", trigger: "blur" },
        ],
        goods_price: [
          { required: true, message: "请输入商品价格", trigger: "blur" },
        ],
        goods_weight: [
          { required: true, message: "请输入商品重量", trigger: "blur" },
        ],
        goods_number: [
          { required: true, message: "请输入商品数量", trigger: "blur" },
        ],
      },
      catePorps: {
        label: "cat_name",
        value: "cat_id",
        children: "children",
      },
      manyList: [],
      onlyList: [],
      previewPath: "",
      headersObj: {
        Authorization: window.sessionStorage.getItem("token"),
      },
      imgdialogVisible: false,
    };
  },
  created() {
    this.getCateList();
  },
  methods: {
    async getCateList() {
      const { data: resp } = await this.$http.get("categories");
      this.cateList = resp.data;
    },
    handleChange() {
      if (this.addForm.goods_cat.length !== 3) {
        this.addForm.goods_cat = [];
      }
    },
    beforeLeave(activeName, oldActiveName) {
      if (oldActiveName === "0" && this.addForm.goods_cat.length !== 3) {
        this.$message.error("请先选择商品分类");
        return false;
      }
    },
    //商品参数
    async tabsshow() {
      if (this.activeindex == "1") {
        var { data: resp } = await this.$http.get(
          `categories/${this.cateId}/attributes`,
          {
            params: { sel: "many" },
          }
        );
        if (resp.meta.status !== 200) {
          return this.$message.error("获取失败");
        }
        resp.data.forEach((item) => {
          item.attr_vals = item.attr_vals ? item.attr_vals.split(" ") : [];
        });
        this.manyList = resp.data;
      } else if (this.activeindex == "2") {
        var { data: resp } = await this.$http.get(
          `categories/${this.cateId}/attributes`,
          {
            params: { sel: "only" },
          }
        );
        if (resp.meta.status !== 200) {
          return this.$message.error("获取失败");
        }

        this.onlyList = resp.data;
      }
    },
    //处理图片预览
    handlePreview(file) {
      this.previewPath = file.response.data.url;
      this.imgdialogVisible = true;
    },
    //处理图片移除
    handleRemove(file) {
      console.log(file);
      const filePath = { pic: file.response.data.tmp_path };

      const i = this.addForm.pics.findIndex | ((x) => x.pic === filePath);
      this.addForm.pics.splice(i, 1);
    },
    //上传成功的监听事件
    successImge(respanse) {
      const picInfo = { pic: respanse.data.tmp_path };
      this.addForm.pics.push(picInfo);
    },
    add() {
      this.$refs.addruleForm.validate(async (valid) => {
        if (!valid) {
          return this.$message.error("请填写必要的信息");
        }
        //添加
        var from = _.cloneDeep(this.addForm);
        from.goods_cat = from.goods_cat.join(",");

        this.manyList.forEach(item => {
          const newinfo = {
            attr_id: item.attr_id,
            attr_value: item.attr_vals.join(" "),
          }
          this.addForm.attrs.push(newinfo);
        });
        this.onlyList.forEach((item) => {
          const newinfo = { attr_id: item.attr_id, attr_value: item.attr_vals };
          this.addForm.attrs.push(newinfo);
        });
        from.attrs = this.addForm.attrs;
        console.log(this.addForm);
        //发起请求
        var { data: resp } = await this.$http.post("goods", from);
        if (resp.meta.status !== 201) {
          return this.$message.error("添加商品失败");
        }
        this.$message.success("添加商品成功");
      });
    },
  },
  computed: {
    cateId() {
      if (this.addForm.goods_cat.length == 3) {
        return this.addForm.goods_cat[2];
      }
      return null;
    },
  },
};
</script>

<style lang="less" scoped>
.el-checkbox {
  margin: 0 10px 0 0 !important;
}
.pimg {
  width: 100%;
}
.eitdbutton {
  margin-top: 15px;
}
</style>
